Best Time to Fly EWR to GSP: On-Time Stats by Hour & Airline
Newark Liberty International → Greenville-Spartanburg International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 85.7% of Newark (EWR) to Greer (GSP) flights arrived on time (776 scheduled flights). That is 8.1 points above the national average of 77.6%.
Republic Airways was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (86% on time) and July the worst month (71%).
The cancellation rate was 5.3% (US average 1.8%).
EWR to GSP on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 85.7% | 67 min | 5.3% | 776 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly EWR to GSP
On-time arrival % by scheduled departure hour (local time), 1,439 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 98.6% | 0.0% | 71 |
| 7am–8am | 94.0% | 3.9% | 52 |
| 8am–9am | 87.4% | 3.2% | 278 |
| 9am–10am | 92.1% | 2.4% | 168 |
| 10am–11am | Limited data | 4 | |
| 2pm–3pm | 84.4% | 2.3% | 177 |
| 3pm–4pm | 83.0% | 0.0% | 47 |
| 4pm–5pm | 82.1% | 6.8% | 133 |
| 6pm–7pm | Limited data | 27 | |
| 7pm–8pm | 65.7% | 7.9% | 38 |
| 8pm–9pm | 77.8% | 8.7% | 69 |
| 9pm–10pm | 73.2% | 11.5% | 375 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on EWR to GSP
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 87.5% | +1.0 pts | 3.5% | 58 |
| Summer peak (Jun 15 - Aug 15) | 72.4% | -14.1 pts | 11.9% | 343 |
| All other days | 86.5% | — | 4.2% | 1,024 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).